Teenage pregnancies.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology; D009825:Oklahoma; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology; D012736:Sex Education